CN107196050A - A kind of miniaturized dual-band circular polarized antenna for loading electromagnetism Meta Materials - Google Patents
A kind of miniaturized dual-band circular polarized antenna for loading electromagnetism Meta Materials Download PDFInfo
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- CN107196050A CN107196050A CN201710552686.9A CN201710552686A CN107196050A CN 107196050 A CN107196050 A CN 107196050A CN 201710552686 A CN201710552686 A CN 201710552686A CN 107196050 A CN107196050 A CN 107196050A
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- 239000000463 material Substances 0.000 title claims abstract description 125
- 229910052751 metal Inorganic materials 0.000 claims abstract description 221
- 239000002184 metal Substances 0.000 claims abstract description 221
- 230000005855 radiation Effects 0.000 claims abstract description 72
- 239000000758 substrate Substances 0.000 claims description 32
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 9
- 229910052737 gold Inorganic materials 0.000 claims description 9
- 239000010931 gold Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 6
- 238000013461 design Methods 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract description 5
- 230000035699 permeability Effects 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 6
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- 238000011161 development Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/364—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith using a particular conducting material, e.g. superconductor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/0414—Substantially flat resonant element parallel to ground plane, e.g. patch antenna in a stacked or folded configuration
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/0428—Substantially flat resonant element parallel to ground plane, e.g. patch antenna radiating a circular polarised wave
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The present invention discloses a kind of miniaturized dual-band circular polarized antenna for loading electromagnetism Meta Materials, and the radiant panel of antenna is collectively formed by first layer radiating layer, second layer electromagnetism metamaterial layer, third layer floor layer；The electromagnetism metamaterial layer of the wherein second layer changes the relative dielectric constant and relative permeability of this layer so that wavelength of the radiated electromagnetic wave in the Meta Materials medium reduces, and is conducive to reducing antenna size, changes impedance operator, is conducive to expanding bandwidth；In addition, the addition of five face metal back of the body chambers can effectively shield backward radiation and external interference, strengthen the requirement of antenna direction radiation directivity；Antenna is integrally without additional matching network, and the size of antenna is only 60mm, and relative bandwidth is 11.7%；The present invention have double frequency-band, high-gain, miniaturization, good directed radiation, the features such as feeding classification is simple, the detection requirement of Missile-borne Antenna can be met, portable design requirement is also met simultaneously, is also applied to other fields, is not limited on missile flight device.
Description
Technical field
The present invention relates to antenna technical field, and in particular to a kind of miniaturized dual-band circular polarisation of loading electromagnetism Meta Materials
Antenna.
Background technology
Progress and the high speed development of telecommunications with electronics technology, communication electronic equipment also towards wide variety,
The direction of full-featuredization is developed.Antenna is as one of part most basic in communication electronic equipment, it is necessary to meet a variety of simultaneously
Strict index request, such as multiband, miniaturization, high-gain.But traditional antenna design method can not meet existing
For the demand of Development of Communication.
With the maturation of electromagnetism Meta Materials technology in recent years, the combination of Meta Materials and antenna is also closed by more and more extensive
Note.In practical engineering application, rational design electromagnetism metamaterial modular construction makes it have special electricity in working band
Magnetic characteristic, is then carried on antenna, realizes the improvement of antenna radiation performance (multifrequency, miniaturization, high-gain).The super material of electromagnetism
The combination of material and antenna, breaches cognition of the people to traditional antenna design method, is that the research of antenna and design have started one
The brand-new road of bar.
The content of the invention
The technical problems to be solved by the invention are that existing antenna can not be while take into account miniaturization, multifrequency and high-gain
Problem, to reduce the size of antenna, meets system there is provided a kind of miniaturized dual-band circular polarized antenna for loading electromagnetism Meta Materials
Detection requirement to target.
To solve the above problems, the present invention is achieved by the following technical solutions：
A kind of miniaturized dual-band circular polarized antenna for loading electromagnetism Meta Materials, mainly carries on the back chamber and aerial radiation plate by metal
Composition；Metal back of the body chamber is the hollow square body of upper top surface opening, and aerial radiation plate is covered in the upper top surface that metal carries on the back chamber；
Aerial radiation plate is made up of radiating layer, electromagnetism metamaterial layer, floor layer and distributing point；Wherein it is located at the radiation on upper strata
Layer, the electromagnetism metamaterial layer positioned at middle level and the floor layer positioned at lower floor are affixed from top to bottom, and radiating layer, electromagnetism metamaterial layer
It is of the same size square with floor layer；Distributing point is located at the middle front part of aerial radiation plate, i.e. radiating layer, electromagnetism metamaterial layer
Distributing point is equipped with floor layer corresponding position；
Above-mentioned radiating layer includes plane non-radiative dielectric medium substrate and is printed on non-radiative dielectric medium substrate upper surface
Radiation metal patch；Radiation metal patch is square notching construction；I.e. radiation metal patch by square metal radiation piece, with
And it is opened in 2 convex shape grooves, 2 U-lags and 2 square groove compositions on the square metal radiation piece；2 convex shape grooves
The edge of front and rear 2 opposite side of square metal radiation piece is symmetrically opened in, and this 2 convex shape grooves are located at radiation metal
On the longitudinal midline of paster；2 U-lags are relatively opened in the edge of 2 opposite side in left and right of square metal radiation piece, and
This 2 U-lags are located at the both sides of the transversal centerline of radiation metal patch respectively；2 square grooves are symmetrically opened in square gold
Belong to the left and right sides of radiation fin, and this 2 square grooves are located in the transversal centerline of radiation metal patch；
Above-mentioned electromagnetism metamaterial layer includes plane electromagnetism Meta Materials dielectric substrate, to be printed on electromagnetism Meta Materials exhausted
The upper electromagnetism Meta Materials metal patch of edge medium substrate upper surface and it is printed on electromagnetism Meta Materials dielectric base lower surface
Lower electromagnetism Meta Materials metal patch；Upper electromagnetism Meta Materials metal patch and lower electromagnetism Meta Materials metal patch are on electromagnetism Meta Materials
Dielectric substrate specular is set, and both are star radial configuration；I.e. upper electromagnetism Meta Materials metal patch and lower electromagnetism
Meta Materials metal patch is constituted by the metal arm of the strip of more than 4, and the metal arm of upper electromagnetism Meta Materials metal patch
It is identical with the quantity of the metal arm of lower electromagnetism Meta Materials metal patch；These metal arms on upper electromagnetism Meta Materials metal patch and
The center of lower electromagnetism Meta Materials metal patch is arranged radially；Metallic vias, the upper super material of electromagnetism are equipped with every metal arm
Expect the upper and lower electromagnetism Meta Materials metal patch of metal patch on 2 mirror images it is relative metal arm it is mutual by this metallic vias
Connection；
Above-mentioned floor layer includes plane floor insulation medium substrate and is printed on floor insulation medium substrate lower surface
Floor metal patch；Floor metal patch is square slotting structure；I.e. floor metal patch by square metal floor piece, with
And it is opened in the gap composition of 2 crisscrosses of the center of square metal floor piece；The bearing of trend in 2 gaps
Along the diagonal of the square metal floor piece.
In such scheme, the bottom surface of metal back of the body chamber is plane or cambered surface.
In such scheme, symmetrical center line and the longitudinal direction of radiation metal patch of 2 convex shape grooves of metal patch are radiated
Center line is overlapped；The symmetrical center line for radiating 2 square grooves of metal patch is overlapped with radiating the transversal centerline of metal patch.
In such scheme, radiate the sheet metal of metal patch wherein 2 are diagonally provided with corner cut.
In such scheme, the equal length of all metal arms of upper electromagnetism Meta Materials metal patch, lower electromagnetism Meta Materials gold
Belong to the equal length of all metal arms on paster.
In such scheme, every 2 metal arms on upper electromagnetism Meta Materials metal patch and lower electromagnetism Meta Materials metal patch
Between angle it is equal.
In such scheme, on every metal arm on upper electromagnetism Meta Materials metal patch and lower electromagnetism Meta Materials metal patch
Provided with the gap for allowing this metal arm to be disconnected from length direction.
In such scheme, the center in 2 gaps on the metal patch of floor is intersected.
In such scheme, distributing point is located on the longitudinal midline of aerial radiation plate, and in the transverse direction of aerial radiation plate
The front side of line.
In such scheme, radiating layer, electromagnetism metamaterial layer and floor layer are fixed together by insulated screw.
Compared with prior art, the present invention is total to by first layer radiating layer, second layer electromagnetism metamaterial layer, third layer floor layer
Radiant panel of the isomorphism into antenna；The electromagnetism metamaterial layer of the wherein second layer changes the relative dielectric constant and relative magnetic permeability of this layer
Rate so that wavelength of the radiated electromagnetic wave in the Meta Materials medium reduces, is conducive to reducing antenna size, changes impedance special
Property, be conducive to expanding bandwidth；In addition, the addition of five face metal back of the body chambers can effectively shield backward radiation and external interference, strengthen
The requirement of antenna direction radiation directivity；Antenna is integrally without additional matching network, and the size of antenna is only 60mm, relative bandwidth
For 11.7%；The present invention have double frequency-band, high-gain, miniaturization, good directed radiation, the features such as feeding classification is simple, energy
The detection requirement of Missile-borne Antenna is met, while also meeting portable design requirement, other fields are also applied to, and not only
It is limited on missile flight device.
Brief description of the drawings
Fig. 1 is a kind of overall structure diagram for the miniaturized dual-band circular polarized antenna for loading electromagnetism Meta Materials.
Fig. 2 ties surface structure signal for a kind of first layer for the miniaturized dual-band circular polarized antenna for loading electromagnetism Meta Materials
Figure.
Fig. 3 illustrates for a kind of second Rotating fields upper surface of the miniaturized dual-band circular polarized antenna for loading electromagnetism Meta Materials
Figure.
Fig. 4 illustrates for a kind of second Rotating fields lower surface of the miniaturized dual-band circular polarized antenna for loading electromagnetism Meta Materials
Figure.
Fig. 5 illustrates for a kind of third layer structure lower surface for the miniaturized dual-band circular polarized antenna for loading electromagnetism Meta Materials
Figure.
Fig. 6 is the VSWR test curve figures of inventive antenna.
Fig. 7 is the Gain test curve figures of inventive antenna.
Fig. 8 is the AR test curve figures of inventive antenna.
Label in figure：1st, metal back of the body chamber；2nd, aerial radiation plate；
2-1, radiating layer；2-1-1, non-radiative dielectric medium substrate；2-1-2, radiation metal patch；2-1-2-1, metal radiation
Piece；2-1-2-2, convex shape groove；2-1-2-3, U-lag；2-1-2-4, square groove；
2-2, electromagnetism metamaterial layer；2-2-1, electromagnetism Meta Materials dielectric substrate；2-2-2, upper electromagnetism Meta Materials metal
Paster；2-2-3, lower electromagnetism Meta Materials metal patch；2-2-2-1, metal arm；2-2-2-2, gap；2-2-2-3, metallic vias；
2-3, floor layer；2-3-1, floor insulation medium substrate；2-3-2, floor metal patch；2-3-2-1, metal floor
Piece；2-3-2-2, gap；
2-4, distributing point；
2-5, insulated screw.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with instantiation, and with reference to attached
Figure, the present invention is described in more detail.It should be noted that the direction term mentioned in example, for example " on ", " under ",
" in ", " left side " " right side ", "front", "rear" etc., be only the direction of refer to the attached drawing.Therefore, the direction used is intended merely to explanation not
For limiting the scope of the invention.
A kind of miniaturized dual-band circular polarized antenna for loading electromagnetism Meta Materials, as shown in figure 1, main carry on the back chamber 1 by metal
Constituted with aerial radiation plate 2.
Metal the back of the body chamber 1 be upper top surface opening hollow square body, i.e., metal the back of the body chamber 1 by left surface, right flank, leading flank,
The cavity that trailing flank and bottom surface are constituted.The upper top surface of metal back of the body chamber 1 leaves opening and covered for aerial radiation plate 2.In this reality
Apply in example, aerial radiation plate 2 is fixedly connected with metal back of the body chamber 1 by insulated screw 2-5.Metal carries on the back chamber 1 and the shape of aerial radiation plate 2
Into a closed square hollow cavity.The bottom surface of metal back of the body chamber 1 is plane or cambered surface.Metal back of the body chamber 1 can effectively shield
Backward radiation and external interference are covered, and strengthens Antenna gain pattern, while as the carrier of aerial radiation plate 2, serving very
Good fixation.In a preferred embodiment of the invention, whole antenna is arranged on inside body, and internal work environment is complicated.For
Reduce the outside influence to antenna radiation performance, use circumferential closed metal back of the body chamber 1 structure.Metal back of the body chamber 1 is by thickness
About 1.5mm aluminium alloy is bent into, and preparation is very easy, has greatly saved cost.In order to make the section of whole antenna high
Degree is as far as possible low, reduces the interference between other equipment, and the height of metal back of the body chamber 1 is freely empty for Antenna Operation centre frequency correspondence
Between wavelength 1/67 or so.In the present embodiment, the height of metal back of the body chamber 1 is 10mm.Stayed in the middle part of the bottom surface of metal back of the body chamber 1
There is the hole position of fixed feed placement.
Aerial radiation plate 2 is made up of radiating layer 2-1, electromagnetism metamaterial layer 2-2, floor layer 2-3 and distributing point 2-4.Radiation
Layer 2-1, electromagnetism metamaterial layer 2-2 and floor layer 2-3 are of the same size square, wherein radiating layer 2-1, position positioned at upper strata
Electromagnetism metamaterial layer 2-2 in middle level and the floor layer 2-3 positioned at lower floor are affixed from top to bottom, and such stepped construction is conducive to
The miniaturization of antenna is realized, low section is realized.Radiating layer 2-1, electromagnetism metamaterial layer 2-2 and floor layer 2-3 can both pass through work
Skill is compressed together, can also be fixed together by insulated screw 2-5.In order to which preferably radiating layer 2-1, electromagnetism are surpassed
Material layer 2-2 and floor layer 2-3 are fixed together, and the present embodiment realizes the fixation of three using insulated screw 2-5.Distributing point 2-
4 are located at the middle front part of aerial radiation plate 2, and radiating layer 2-1, electromagnetism metamaterial layer 2-2 and floor layer 2-3 corresponding position are equipped with feedback
Electric point 2-4, radiating layer 2-1, electromagnetism metamaterial layer 2-2 and floor layer 2-3 realize coaxial feed by distributing point 2-4.In this hair
In bright, distributing point 2-4 is located on the longitudinal midline of aerial radiation plate 2, and the front side of the transversal centerline positioned at aerial radiation plate 2.
Specifically, distributing point 2-4 is located at the inferoanterior 8mm of the central point of aerial radiation plate 2, left side 0.5mm.
Referring to Fig. 2, above-mentioned radiating layer 2-1 includes plane non-radiative dielectric medium substrate 2-1-1 and is printed on radiation absolutely
The radiation metal patch 2-1-2 of edge medium substrate 2-1-1 upper surfaces.It is square notching construction to radiate metal patch 2-1-2.That is spoke
Metal patch 2-1-2 is penetrated by square metal radiation piece 2-1-2-1 and the square metal radiation piece 2-1-2-1 is opened in
On 2 convex shape groove 2-1-2-2,2 U-lag 2-1-2-3 and 2 square groove 2-1-2-4 composition.Convex shape groove 2-1-2-2,
U-lag 2-1-2-3 and square groove 2-1-2-4 effect are for increasing the current path of antenna, reducing the size of antenna.Radiation
Wherein 2 of metal patch 2-1-2 sheet metal are diagonally provided with corner cut, and the position of the corner cut is arranged on the diagonal being tilted to the right
On corresponding 2 are diagonal, to realize circular polarisation.2 convex shape groove 2-1-2-2 are symmetrically opened in square metal radiation piece
The edge of 2-1-2-1 front and rear 2 opposite side, and this 2 convex shape groove 2-1-2-2 are located at the vertical of radiation metal patch 2-1-2
On to the midline, i.e. this 2 convex shape groove 2-1-2-2 are located at the middle part of front and rear 2 opposite side.In the present embodiment, 2 convex shape grooves
2-1-2-2 shapes and sizes are completely the same, and this 2 convex shape groove 2-1-2-2 symmetrical center line and radiation metal patch
2-1-2 longitudinal midline is overlapped.2 U-lag 2-1-2-3 are relatively opened in square metal radiation piece 2-1-2-1 left and right 2
The edge of bar opposite side, and this 2 U-lag 2-1-2-3 are located at the both sides of radiation metal patch 2-1-2 transversal centerline respectively,
I.e. wherein 1 U-lag 2-1-2-3 is located at the bottom of left opposite side, and 1 U-lag 2-1-2-3 is located at the top of left opposite side in addition；2
Square groove 2-1-2-4 is symmetrically opened in the left and right sides of square sheet metal.In the present embodiment, 2 U-lag 2-1-2-3
Shapes and sizes it is completely the same.2 square groove 2-1-2-4 are symmetrically opened in square metal radiation fin 2-1-2-1 left and right
Both sides, and this 2 square groove 2-1-2-4 are in radiation metal patch 2-1-2 transversal centerline, i.e. this 2 square groove 2-1-
2-4 is located at the middle part of the fore-and-aft direction of the left and right sides.In the present embodiment, 2 square groove 2-1-2-4 shapes and sizes are complete
Unanimously, and this 2 square groove 2-1-2-4 symmetrical center line with radiate metal patch 2-1-2 transversal centerline overlap.
Referring to Fig. 2 and Fig. 3, above-mentioned electromagnetism metamaterial layer 2-2 includes plane electromagnetism Meta Materials dielectric substrate 2-
2-1, the upper electromagnetism Meta Materials metal patch 2-2-2 for being printed on electromagnetism Meta Materials dielectric substrate 2-2-1 upper surfaces and printing
In the lower electromagnetism Meta Materials metal patch 2-2-3 of electromagnetism Meta Materials dielectric substrate 2-2-1 lower surfaces.Upper electromagnetism Meta Materials gold
Belong to paster 2-2-2 and lower electromagnetism Meta Materials metal patch 2-2-3 on electromagnetism Meta Materials dielectric substrate 2-2-1 speculars
Set, both are star radial configuration.I.e. upper electromagnetism Meta Materials metal patch 2-2-2 and lower electromagnetism Meta Materials metal patch 2-
2-3 is constituted by the metal arm 2-2-2-1 of the strip of more than 4, and upper electromagnetism Meta Materials metal patch 2-2-2 metal arm
2-2-2-1 is identical with lower electromagnetism Meta Materials metal patch 2-2-3 metal arm 2-2-2-1 quantity.These metal arms 2-2-2-1
Center on upper electromagnetism Meta Materials metal patch 2-2-2 and lower electromagnetism Meta Materials metal patch 2-2-3 is arranged radially.
In the present embodiment, upper electromagnetism Meta Materials metal patch 2-2-2 and lower electromagnetism Meta Materials metal patch 2-2-3 are by 12 metal arms
2-2-2-1 according to be separated by certain angular displacement into star topology.In actual engineer applied, each metal arm 2-2-2-
1, which is separated by angle [alpha], to choose at random, i.e., star topology can be formed by periodic structure arrangement, can also be arranged by aperiodic structure
Cloth is formed.In the present embodiment, on upper electromagnetism Meta Materials metal patch 2-2-2 and lower electromagnetism Meta Materials metal patch 2-2-3
Angle between every 2 metal arm 2-2-2-1 is equal, i.e. metal arm 2-2-2-1 uses cycle arrangement, metal arm 2-2-
The angle [alpha] being separated by between 2-1 is the same, is all 30 °.Upper electromagnetism Meta Materials metal patch 2-2-2 and lower electromagnetism Meta Materials gold
Category paster 2-2-3 each metal arm 2-2-2-1 length can be selected according to the specific works frequency range of antenna.Upper electromagnetism
On Meta Materials metal patch 2-2-2 all metal arm 2-2-2-1 equal length, lower electromagnetism Meta Materials metal patch 2-2-3
All metal arm 2-2-2-1 equal length.In this example, upper electromagnetism Meta Materials metal patch 2-2-2 metal arm 2-
2-2-1 length is the same, is all 24.5mm, and lower electromagnetism Meta Materials metal patch 2-2-3 metal arm 2-2-2-1 length is the same
, it is 27.5mm.Upper electromagnetism Meta Materials metal patch 2-2-2 and lower electromagnetism Meta Materials metal patch 2-2-3 each metal
Arm 2-2-2-1 width is according to practical application conditional decision.This implementation row in, upper electromagnetism Meta Materials metal patch 2-2-2 and
Lower electromagnetism Meta Materials metal patch 2-2-3 all metal arm 2-2-2-1 width is consistent, is 2.5mm.In addition, upper electricity
Can be with every metal arm 2-2-2-1 on magnetic Meta Materials metal patch 2-2-2 and lower electromagnetism Meta Materials metal patch 2-2-3
Further have additional the gap 2-2-2-2 for allowing this metal arm 2-2-2-1 to be disconnected from length direction, so that the super material of electromagnetism
The resonant ring of material SRR construction units can be equivalent to a LC resonance circuit.The gap 2-2- that each metal arm 2-2-2-1 disconnects
2-2 width can be with equal, can also be unequal, and gap 2-2-2-2 width can be adjusted according to the difference of working frequency range.
In the present embodiment, the gap 2-2-2-2 that upper electromagnetism Meta Materials metal patch 2-2-2 metal arm 2-2-2-1 disconnects be it is the same,
It is 2.5mm, lower electromagnetism Meta Materials metal patch 2-2-3 metal arm 2-2-2-1 gap 2-2-2-2 is the same, is
1.5mm.Every metal arm 2-2- on upper electromagnetism Meta Materials metal patch 2-2-2 and lower electromagnetism Meta Materials metal patch 2-2-3
Metallic vias 2-2-2-3 is equipped with 2-1, metallic vias 2-2-2-3 insertion electromagnetism Meta Materials dielectric substrates 2-2-1's is upper
2 mirror images on lower surface, the so upper and lower electromagnetism Meta Materials metal patch 2-2-3 of upper electromagnetism Meta Materials metal patch 2-2-2
Relative metal arm 2-2-2-1 is interconnected by this metallic vias 2-2-2-3.In the present embodiment, metallic vias 2-2-
2-3 a diameter of 1.5mm.In the present embodiment, due to upper electromagnetism Meta Materials metal patch 2-2-2 and lower electromagnetism Meta Materials metal
Paster 2-2-3 has a metal arm 2-2-2-1 by distributing point 2-4, therefore the metal mistake on this 2 metal arm 2-2-2-1
Hole 2-2-2-3 and distributing point 2-4 through hole are shared, i.e. the metamaterial structure unit of upper and lower surface is with 11 metallic vias 2-2-2-
3 insertions are got up, one of which not with metallic vias 2-2-2-3 insertions be feed pass through position.Upper electromagnetism Meta Materials gold
Belong to paster 2-2-2 and lower electromagnetism Meta Materials metal patch 2-2-3 formation electromagnetism metamaterial structures, the electromagnetism metamaterial structure can
High magnetic permeability characteristic is produced in working frequency range, the reduction of electromagnetic wave medium wavelength is realized, and then realize the miniaturization of antenna.
Referring to Fig. 4, above-mentioned floor layer 2-3 includes plane floor insulation medium substrate 2-3-1 and to be printed on floor exhausted
The floor metal patch 2-3-2 of edge medium substrate 2-3-1 lower surfaces.Floor metal patch 2-3-2 is square slotting structure.I.e.
Sheetmetal paster 2-3-2 is by square metal floor piece 2-3-2-1 and is opened in square metal floor piece 2-3-2-1's
The gap 2-3-2-2 compositions of 2 crisscrosses of center.2 gap 2-3-2-2 bearing of trend is along the square gold
Possession plate 2-3-2-1 diagonal.Intersect at floor metal patch 2-3-2 2 gap 2-3-2-2 center.2 seams
Gap 2-3-2-2 width and effect length the resonant frequency and circular polarisation of antenna.Floor metal patch 2-3-2 2 gaps
2-3-2-2 length ratio can be adjusted according to specific works frequency range, and length ratio affects the circular polarisation and double frequency ratio of antenna
Scope.In the present embodiment, 2 gap 2-3-2-2 length is unequal, and width is equal and is 1mm.In present example
In, cross gap 2-3-2-2 double frequency ratio is 1.05.Floor layer 2-3 effect is the circular polarisation for realizing antenna, reduces antenna
Size.
Non-radiative dielectric medium substrate 2-1-1, electromagnetism Meta Materials dielectric substrate 2-2-1 and floor insulation medium substrate 2-
3-1 is made by insulating dielectric materials.Above-mentioned dielectric substrate is on the one hand as the carrier of metal patch, on the other hand also shadow
Ring the size of metal patch, i.e., when the thickness or dielectric constant of dielectric substrate change, dielectric substrate surface
Metal patch size need be finely adjusted.In this example, the material of dielectric substrate is that dielectric constant is 10.2
Rogers's dielectric-slab, thickness is 0.635mm.Radiate metal patch 2-1-2, upper electromagnetism Meta Materials metal patch 2-2-2, lower electromagnetism
Meta Materials metal patch 2-2-3 and floor metal patch 2-3-2 material can be the metal material such as gold, silver, tin, but synthesis is examined
Consider performance and cost, above-mentioned paster is prepared using copper product.
This antenna do not carry out it is any there is consumption to load, gain is higher, can meet requirement of the system to detection range and precision.Figure
6 be the standing wave test curve figure of antenna of the embodiment of the present invention.As shown in fig. 6, in the frequency band range of double-frequency resonance, 420MHz-
430MHz and 460MHz-470MHz are satisfied by S11≤ -10dBi, the relative bandwidth of antenna reaches 11.7%.Fig. 7 is antenna
Gain test curve map, as illustrated, in working band, the gain of antenna is all higher than -12dBi, meets the need of engineer applied
Will.Fig. 8 be the axle of antenna than test result, antenna has good circular polarisation performance.
In summary, the present invention is a kind of compact dual-frequency section circular polarized antenna for loading electromagnetism Meta Materials.With double frequency
Band, high-gain, miniaturization, good directed radiation, the features such as feeding classification is simple, the detection requirement of Missile-borne Antenna can be met,
Portable design requirement is also met simultaneously.
It should be noted that although embodiment of the present invention is illustrative above, this is not to the present invention
Limitation, therefore the invention is not limited in above-mentioned embodiment.Without departing from the principles of the present invention, it is every
The other embodiment that those skilled in the art obtain under the enlightenment of the present invention, is accordingly to be regarded as within the protection of the present invention.
Claims (10)
1. a kind of miniaturized dual-band circular polarized antenna for loading electromagnetism Meta Materials, it is characterised in that：It is main that chamber (1) is carried on the back by metal
With aerial radiation plate (2) composition；Metal back of the body chamber (1) is the hollow square body of upper top surface opening, and aerial radiation plate (2) is covered in gold
The upper top surface of category back of the body chamber (1)；
Aerial radiation plate (2) is by radiating layer (2-1), electromagnetism metamaterial layer (2-2), floor layer (2-3) and distributing point (2-4) group
Into；Wherein it is located at the radiating layer (2-1) on upper strata, electromagnetism metamaterial layer (2-2) and the floor layer (2- positioned at lower floor positioned at middle level
3) it is affixed from top to bottom, and radiating layer (2-1), electromagnetism metamaterial layer (2-2) and floor layer (2-3) they are side of the same size
Shape；Distributing point (2-4) is located at the middle front part of aerial radiation plate (2), i.e. radiating layer (2-1), electromagnetism metamaterial layer (2-2) and floor
Layer (2-3) corresponding position is equipped with distributing point (2-4)；
Above-mentioned radiating layer (2-1) is including plane non-radiative dielectric medium substrate (2-1-1) and is printed on non-radiative dielectric medium base
The radiation metal patch (2-1-2) of plate (2-1-1) upper surface；It is square notching construction to radiate metal patch (2-1-2)；Radiate
Metal patch (2-1-2) is by square metal radiation piece (2-1-2-1) and is opened in the square metal radiation piece (2-1-
2 convex shape grooves (2-1-2-2), 2 U-lags (2-1-2-3) and 2 square groove (2-1-2-4) compositions on 2-1)；2 convex
Font groove (2-1-2-2) is symmetrically opened in the edge of front and rear 2 opposite side of square metal radiation piece (2-1-2-1), and
This 2 convex shape grooves (2-1-2-2) are located on the longitudinal midline of radiation metal patch (2-1-2)；2 U-lag (2-1-2-3) phases
The edge of 2 opposite side in left and right of square metal radiation piece (2-1-2-1), and this 2 U-lag (2-1-2- are opened in over the ground
3) it is located at the both sides of the transversal centerline of radiation metal patch (2-1-2) respectively；2 square grooves (2-1-2-4) are symmetrically opened in
The left and right sides of square metal radiation piece (2-1-2-1), and this 2 square grooves (2-1-2-4) are located at radiation metal patch (2-
In transversal centerline 1-2)；
Above-mentioned electromagnetism metamaterial layer (2-2) includes plane electromagnetism Meta Materials dielectric substrate (2-2-1), is printed on electromagnetism
The upper electromagnetism Meta Materials metal patch (2-2-2) of Meta Materials dielectric substrate (2-2-1) upper surface and it is printed on the super material of electromagnetism
Expect the lower electromagnetism Meta Materials metal patch (2-2-3) of dielectric substrate (2-2-1) lower surface；Upper electromagnetism Meta Materials metal patch
(2-2-2) and lower electromagnetism Meta Materials metal patch (2-2-3) are on electromagnetism Meta Materials dielectric substrate (2-2-1) specular
Set, both are star radial configuration；I.e. upper electromagnetism Meta Materials metal patch (2-2-2) and lower electromagnetism Meta Materials metal patch
(2-2-3) is constituted by the metal arm (2-2-2-1) of the strip of more than 4, and upper electromagnetism Meta Materials metal patch (2-2-2)
Metal arm (2-2-2-1) it is identical with the quantity of the metal arm (2-2-2-1) of lower electromagnetism Meta Materials metal patch (2-2-3)；This
A little metal arms (2-2-2-1) are on upper electromagnetism Meta Materials metal patch (2-2-2) and lower electromagnetism Meta Materials metal patch (2-2-3)
Center be arranged radially；Metallic vias (2-2-2-3), upper electromagnetism Meta Materials are equipped with every metal arm (2-2-2-1)
Relative metal arm (the 2-2-2- of 2 mirror images on the upper and lower electromagnetism Meta Materials metal patch (2-2-3) of metal patch (2-2-2)
1) it is interconnected by this metallic vias (2-2-2-3)；
Above-mentioned floor layer (2-3) is including plane floor insulation medium substrate (2-3-1) and is printed on floor insulation medium base
The floor metal patch (2-3-2) of plate (2-3-1) lower surface；Floor metal patch (2-3-2) is square slotting structure；That is floor
Metal patch (2-3-2) is by square metal floor piece (2-3-2-1) and is opened in square metal floor piece (2-3-2-
1) gap (2-3-2-2) composition of 2 crisscrosses of center；The bearing of trend edge of 2 gaps (2-3-2-2) should
The diagonal of square metal floor piece (2-3-2-1).
2. a kind of miniaturized dual-band circular polarized antenna for loading electromagnetism Meta Materials according to claim 1, its feature exists
In：The bottom surface of metal back of the body chamber (1) is plane or cambered surface.
3. a kind of miniaturized dual-band circular polarized antenna for loading electromagnetism Meta Materials according to claim 1, its feature exists
In：Radiate the symmetrical center line and radiation metal patch (2-1-2) of 2 convex shape grooves (2-1-2-2) of metal patch (2-1-2)
Longitudinal midline overlap；Radiate the symmetrical center line and radiation metal of 2 square grooves (2-1-2-4) of metal patch (2-1-2)
The transversal centerline of paster (2-1-2) is overlapped.
4. a kind of miniaturized dual-band circular polarized antenna for loading electromagnetism Meta Materials according to claim 1, its feature exists
In：Radiate the sheet metal of metal patch (2-1-2) wherein 2 are diagonally provided with corner cut.
5. a kind of miniaturized dual-band circular polarized antenna for loading electromagnetism Meta Materials according to claim 1, its feature exists
In：The equal length of all metal arms (2-2-2-1) of upper electromagnetism Meta Materials metal patch (2-2-2), lower electromagnetism Meta Materials gold
Belong to the equal length of all metal arms (2-2-2-1) on paster (2-2-3).
6. a kind of miniaturized dual-band circular polarized antenna for loading electromagnetism Meta Materials according to claim 1, its feature exists
In：Every 2 metal arm (2- on upper electromagnetism Meta Materials metal patch (2-2-2) and lower electromagnetism Meta Materials metal patch (2-2-3)
Angle between 2-2-1) is equal.
7. a kind of miniaturized dual-band circular polarized antenna for loading electromagnetism Meta Materials according to claim 1, its feature exists
In：Every metal arm (2- on upper electromagnetism Meta Materials metal patch (2-2-2) and lower electromagnetism Meta Materials metal patch (2-2-3)
2-2-1) provided with allowing the gap (2-2-2-2) that this metal arm (2-2-2-1) disconnects from length direction.
8. a kind of miniaturized dual-band circular polarized antenna for loading electromagnetism Meta Materials according to claim 1, its feature exists
In：Intersect at the center of 2 gaps (2-3-2-2) on floor metal patch (2-3-2).
9. a kind of miniaturized dual-band circular polarized antenna for loading electromagnetism Meta Materials according to claim 1, its feature exists
In：Distributing point (2-4) is located on the longitudinal midline of aerial radiation plate (2), and before the transversal centerline of aerial radiation plate (2)
Side.
10. a kind of miniaturized dual-band circular polarized antenna for loading electromagnetism Meta Materials according to claim 1, its feature exists
In：Radiating layer (2-1), electromagnetism metamaterial layer (2-2) and floor layer (2-3) are fixed together by insulated screw (2-5).
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| CN107196050B (en) | 2023-05-30 |
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Application publication date: 20170922 Assignee: Guilin Jiuyu Technology Co.,Ltd. Assignor: GUILIN University OF ELECTRONIC TECHNOLOGY Contract record no.: X2023980045858 Denomination of invention: A miniaturized dual band circularly polarized antenna loaded with electromagnetic metamaterials Granted publication date: 20230530 License type: Common License Record date: 20231107 |
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